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Efetividade do tratamento endodôntico em sessão única x múltiplas sessões na periodontite apical pós-tratamento: sinais e sintomas; carga microbiana; níveis de endotoxinas e ácido lipoteicóico e volumetria da destruição óssea periapical por TCFC

Authors: Toia, Cassia Cestari;

Efetividade do tratamento endodôntico em sessão única x múltiplas sessões na periodontite apical pós-tratamento: sinais e sintomas; carga microbiana; níveis de endotoxinas e ácido lipoteicóico e volumetria da destruição óssea periapical por TCFC

Abstract

Os objetivos deste estudo foram: a) avaliar o sucesso clínico e por tomografia computadorizada de feixe cônico (TCFC) após 18 meses do retratamento em sessão única (RU) e múltiplas sessões (RM); b) monitorar carga (UFC/mL) e perfil microbiano; níveis de endotoxinas (EU/mL) e de ácido lipoteicóico [LTA (pg/mL)] em dentes com periodontite apical pós-tratamento (PAPT) submetidos a RU e RM; c) comparar a sintomatologia pós-operatória pela escala visual analógica de dor (EVA) em RU e RM; d) comparar os tratamentos quanto à redução de UFC/mL, EU/mL, LTA (pg/mL) e a volumetria da lesão periapical (LP) e) avaliar as correlações e associações entre os dados obtidos no estudo. Seguindo critérios de inclusão e não-inclusão, foram selecionados 40 dentes com PAPT, divididos em dois grupos: RM e RU. Os pacientes foram submetidos à TCFC. Foram realizadas coletas do conteúdo do canal radicular: após remoção do material obturador (S1), após preparo biomecânico (PBM) (S2) e após MIC (S3). Ao final da sessão, foi fornecida a EVA para avaliação da sintomatologia dolorosa apresentada nos períodos de 24hs, 48hs e 7 dias. O conteúdo dos canais radiculares foi avaliado por cultura microbiológica, perfil microbiano por Checkerboard DNA-DNA hybridization, níveis de endotoxinas pelo teste Lisado Amebócito de Limulus e de ácido lipoteicóico pelo ensaio de ELISA. Foi realizada a volumetria da destruição óssea periapical inicial e final por TCFC pelo software ITK snap. Os dados foram analisados estatisticamente. Os níveis de UFC/mL, EU/mL e LTA (pg/mL) diminuíram após o PBM, havendo a manutenção dos mesmos após o uso de MIC (p>0,05). As coletas apresentaram valores iniciais (S1) maiores que os residuais (antes da obturação) para os parâmetros avaliados. Quanto aos valores residuais, foram encontrados maiores valores de UFC/mL em RM e menores valores de LTA no mesmo grupo (p0,05) pela EVA. O volume inicial das LP variou de 10 a 470 mm³, sendo que o final variou de 0 a 48 mm³. Houve redução da média dos volumes de 84,71% em RU e de 90.56% em RM, sendo esta redução significante em ambos os grupos (p< 0,0001), mas sem diferença estatística entre eles (p=0,9117). No período de 18 meses após o retratamento endodôntico não houve diferenças na regressão das lesões e análise dos demais sinais e sintomas entre RU e RM.

This study aimed to: a) evaluate the success rates of one-visit (1-visit) and two-visit (2-visit) endodontic retreatment after 18 months by cone-beam computed tomography (CBCT) and analyze clinical signs and symptoms; b) monitor and compare the microbial load and profile; levels of endotoxins and lipoteichoic acid in teeth with post-treatment apical periodontitis (PTAP); c) compare the postoperative pain between the groups by the visual analog pain scale (VAS); d) correlate the variables with themselves. Forty teeth with PTAP were selected and submitted to CBCT. The sampling procedure was performed: after filling material removal (S1), after biomechanical preparation (S2), and after the intracanal medication placement (S3). VAS was provided for assessment of the postoperative pain at different time-points (24 h, 48 h, and 7 days). Root canal contents were submitted to microbiological assessment by culture technique (CFU/mL) and Checkerboard DNA-DNA hybridization, and the determination of LPS (UE/mL) and LTA (pg/mL) levels by Limulus amebocyte lysate and enzyme-linked immunosorbent assays, respectively. Periapical lesions volumes were obtained by the ITK snap program. Data were statistically analyzed. CFU/mL, UE/mL, and LTA (pg/mL) decreased after biomechanical preparation, with their maintenance after the use of intracanal medication (p>0.05). All root canal samples had their baseline values (S1) higher than those found before the root canal obturation (residual values) for all parameters. Regarding the residual values, higher values of CFU/mL and lower values of LTA were found in 2-visit groups (p0.05). The initial volume of the periapical lesions ranged from 10 to 470 mm³, and the final ones ranged from 0 to 48 mm³. A significant reduction of the periapical lesion was observed after 18-months in both groups (p0.05). No significant differences were observed in the outcome of the two modalities of endodontic retreatment.

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Odontologia Restauradora - ICT

Processo FAPESP: 2017/22676-7

Country
Brazil
Keywords

Endotoxins, Endotoxinas, Tomografia computadorizada de feixe cônico, Cone-beam computed tomography, Periodontite periapical, Periapical periodontitis

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green